For the following questions answer them individually
The ratio $$\frac{Liquid limit - Water content}{Plasticity index}$$ for a soil mass is called
A fundamental equation of void ratio (e), specific gravity (G), water content (W) and the degree of saturation $$ (S_p) $$ is
Capillarity is due to
I. surface tension
II. cohesion
III. viscosity
IV. vapour pressure
V. weight density of liquid